In order for cells to function properly, the enzymes that they contain must also function properly. The graph below shows how pH affects the activity of the enzyme salivary amylase.
From the information given, what can be inferred about cells that have salivary amylase?
A.
They do not function well at a pH that is too high or too low.
B.
They function equally well regardless of the pH level.
C.
They function best at a high pH.
D.
They function best at a low pH.